baber/WOPTO huggingface dataset:
Patent GB-356878-A (GB)
Title: Improvements in or relating to textiles
IPC: D06M13/188
Filed: 1930-07-18
Abstract: 356,878. Treating textiles with liquids. NATHANSOHN, A., 50111, Motzstrasse, Wilmersdorf, Berlin. July 18, 1930, No. 21826. Convention date, Sept. 14, 1929. [Classes 2 (ii) and 15 (ii).] In the process for improving textiles by partial esterification with higher fatty acids described in Specification 355,256, the treated material, after drying, is exposed to a temperature over 50‹ C. ; stronger effects, particularly in respect of the water-repelling properties, are thereby obtained. In examples, (1) raw cotton is soaked with a solution of stearic anhydride in benzene, dried, and heated to 80‹ C. for 6 hours; (2) dyed woollen cloth is soaked with a solution of stearic anhydride in benzene, dried, and heated to 100‹ C. for 12 hours ; (3) dyed cotton is soaked with a solution of stearyl chloride and diethylaniline in benzine, dried, and heated to 70‹ C. for 6 hours; (4) dyed cotton is soaked with a solution of stearic anhydride in carbon tetrachloride, dried, and heated for 6 hours to 80‹ C. ; (5) a mixed viscose-cotton fabric is coated with a solution of stearic anhydride in ethyl alcohol, dried, and heated to 90‹ C. for 5 hours ; (6) cuprammonium silk yarn is soaked with a solution of stearic anhydride in trichlorethylene, dried and heated to 85‹ C. for 6 hours ; (7) jute fabric is soaked with a solution of stearic anhydride in toluene, dried and heated to 75‹ C. for 6 hours ; (8) natural silk is soaked with a solution of stearic anhydride in benzene and benzine, heated to 70‹ C. for 8 hours, and washed with benzine, and (9) tussah silk is soaked with a solution of stearic anhydride in carbon tetrachloride, dried, and heated to 70‹ C. for 8 hours.
Patent GB-218567-A (GB)
Abstract: 218,567. Bienz, C. July 14, 1923, [Convention date]. Valves.-In an engine having valves 9 sliding outside the cylinder and controlling ports 10, the walls of the cylinder 1 are formed with inclined slits 11 near the ports so as to render them resilient, so that the cylinder pressure forces the valve eeatings outwards against the valves. Valve gear.-The valves are actuated by levers 8 and a grooved cam 7.
Patent GB-669076-A (GB)
Title: Improvements in or relating to an ovicidal composition and method of making the same
IPC: A01N41/04
Filed: 1949-08-23
Abstract: 669,076. Ovicidal compositions. DOW CHEMICAL CO. Aug. 23, 1949 [Feb. 2, 1949], No. 21872/49. Class 81 (i). An ovicidal composition for the control of the eggs of mites comprises 4-chlorophenyl 4-chlorobenzene sulphonate and an inert carrier which may be a finely divided powder, an organic solvent, a wetting or dispersing agent, an aqueous emulsion, or a combination thereof. Such compositions may be dusts, sprays; or a concentrate therefor. Specified inert powders are: talc, pyrophyllite, gypsum, Fuller's earth, bentonite, diatomaceous earth, wood flours, inorganic phosphates and clays e.g. attapulgite clay. Liquid carriers are petroleum oils, alcohols, acetone, liquid chlorinated hydrocarbons, pine oil, glycerides. Wetting and dispersing agents are alkali and alkaline earth metal caseinates, blood albumen, alkali metal salts of long chain aliphatic sulphates e.g. sodium lauryl sulphate, partially neutralized sulphuric acid derivatives of petroleum oils and naturally occurring glycerides, sulphonated derivatives of phenols and aromatic acids and their salts, soaps, condensation products of alkylene oxides with organic acids, alkanol amines, complex ether-alcohols and esters. Aqueous emulsions may be of petroleum distillates or fatty oils. A preferred product comprises the toxicant, an inert powder and a wetting and dispersing agent providing a wettable powder.
Patent GB-906056-A (GB)
Title: Catalyst compositions suitable for the polymerisation of conjugated dienes
IPC: C08F36/04
Filed: 1959-02-26
Abstract: A substantially liquid composition used as a catalyst for polymerizing conjugated dienes is prepared by ageing a solid low pressure catalyst in admixture with a hydrocarbon diluent for a period sufficient to allow catalytic activity to be attained in the liquid fraction and thereafter separating any residual solid therefrom.  The solid low pressure catalyst is formed by mixing at least two components:- (1) a salt of Co or Ni and (2) LiAlH4 or an organocompound of a Group Ia, IIb or IIIb metal, preferably either (a) a compound R1R2AlX wherein R1 is hydrocarbon, R2 is H or hydrocarbon, and X is H, halogen, alkoxy aryloxy, the residue of a secondary amine, amide, mercaptan, thiophenol, carboxylic or sulphonic acid, or (b) selected from Al trialkyls, Mg or Zn alkyls, or Grignard compounds.  Specified monomers are butadiene; isoprene; 2:3-di-methyl-, 2-ethyl-, 2-isopropyl- and 2-amylbutadiene;4-methyl-1:3-hexadiene, 2-methyl-1:3-pentadiene, 2:4:6-octatriene and piperylene.  The catalysts in the examples are prepared from the ingredients shown, and used for the polymerization of butadiene:- (1), (2), (4) and (7) i-Bu3Al, CoCl2; (3) Et3Al, CoCl2; (5) and (6) i-Bu3Al, NiCl2; (8) and (9) Et3Al2Cl3, CoCl2.  The polymers produced using the catalyst of the invention have a high content of the cis-1:4 configuration.  Specification 906,052 also is referred to.ALSO:A substantially liquid composition used as a catalyst for polymerizing conjugated dienes is prepared by ageing a solid low pressure catalyst in admixture with a hydrocarbon diluent for a period sufficient to allow catalytic activity to be attained in the liquid fraction and thereafter separating any residual solid therefrom.  The solid low pressure catalyst is formed by mixing at least two components:- (1) a salt of Co or Ni and (2) LiAlH4 or an organo-compound of a Group Ia, IIb or IIIb metal, preferably either (a) a compound R1R2AlX wherein R1 is hydrocarbon, R2 is H or hydrocarbon, and X is H, halogen, alkoxy aryloxy, the residue of a secondary amine, amide, mercapton, thiophenol, carboxylic or sulphonic acid, or (b) selected from Al trialkyls, Mg or Zn alkyls, or Grignard compounds.  Specified monomers are butadiene; isoprene; 2:3-dimethyl-, 2-ethyl-, 2-isopropyl- and 2-amyl-butadiene; 4-methyl-1:3-hexadiene, 2-methyl-1:3-pentadiene, 2:4:6-octatriene and piperylene.  The catalysts in the examples are prepared from the ingredients shown, and used for the polymerization of butadiene:- (1), (2), (4) and (7) i-Bu3Al, CoCl2; (3) Et3Al, CoCl2; (5) and (6) i-Bu3Al, NiCl2; (8) and (9) Et3Al2Cl3, CoCl2.  The polymers produced using the catalyst of the invention have a high content of the cis-1:4 configuration.  Specification 906,052 also is referred to.
Patent GB-801948-A (GB)
Title: Improved latch device for fluid pressure operated braking apparatus
IPC: B60T8/18
Filed: 1956-07-17
Abstract: 801,948. Brake cylinders. WESTINGHOUSE AIR BRAKE CO. July 17,1956 [Sept. 22, 1955], No. 22128/56. Class 103 (1). In a fluid pressure braking apparatus, a brake cylinder 2 is provided with a hollow piston rod 12 and a tooth push rod 13 slidable in and projecting exteriorly from the piston rod, and a latch device 1 mounted on the hollow piston rod 12 and provided with a latch 50, pivoted to a bell-crank lever 37, adapted to be engaged with the teeth 55 of the push rod 13 under the action of spring 48; unlatching means 46 being provided which normally maintain the latch 50 disengaged from the push rod 13 when the pressure chamber 7 is devoid of fluid under pressure. In the disengaged position of the brake cylinder illustrated in Fig. 1, the latch 50 is disengaged from the teeth 55 by unlatching pin 46 abutting the end 5 of cylinder 2 such that short arm 41 of bell-crank lever 37 pivoted to the latch device body 20 at 38 is held hard against the abutment face 59 of abutment 58 integral with latch device body 20. In the empty-load mechanism illustrated in Fig. 3 incorporating a load brake cylinder 2 shown in Fig. 1, when fluid pressure is supplied through the pipe 61 to the empty brake cylinder 18, the push rod 19 is moved outwardly to effect counter-clockwise pivotal movement of brake lever 16 about fixed member 17 to first take up the slack in the brake rigging. As the brake lever 16 pivots, the load brake cylinder push rod 13 is pulled outwardly to an extended position while the piston 6 and hence piston rod 12 of the load brake cylinder 2 remains in the innermost position. For braking a loaded vehicle, after slack has been taken up as described above, fluid under pressure is supplied to pressure chamber 7 of the load brake cylinder 2 causing piston 6, piston rod 12 and latch device to move outwardly against the resistance of return spring 10. As the latch device 1 is carried away from the end 5 of cylinder 2 by the piston rod 12, the bell-crank lever 37 is rocked clockwise about fulcrum pin 38 by spring 48 to carry latch 50 into engagement with the teeth 55 of the stationary push rod 13. Further movement of piston 6 will thus be transmitted to the push rod 13 to pivot the brake lever 16 still further in a counterclockwise direction to apply the brake of the vehicle. Release of the fluid pressure in the chamber 7 will cause spring 10 to return the piston 6, piston rod 12 and latch device 1 to the inoperative position shown; the unlatching pin 46 abutting the end 5 of cylinder 2 disengaging the latch 50 from engagement with the push rod 13 such that when fluid under pressure is released, push rod 19 will return the brake lever and the load brake cylinder push rod to their fully retracted position shown in Fig. 3. U.S.A. Specification 2,004,654 is referred to.
Patent GB-183725-A (GB)
Title: Improvements relating to vermin traps
IPC: A01M23/36
Filed: 1921-08-22
Abstract: 183,725. Powell, G. W. Aug. 22, 1921. Animals, catching and destroying.-A trap of the guillotine type, particularly for catching moles, comprises a frame member 3 within which slides a spring - controlled plunger 8. Holes 13 in lugs 11 on the plunger receive the ends of the, trip-member 16, which ends project through tha holes to engage in recesses 20 in the member 3. In the set position the trip-member 16 is in the same plane as the member 3. The animal, passing along the run, pushes the trip - member forward, causing the arms 18 to wipe over the inclined surfaces 14 of the lugs 11 thus releasing the ends 19 from the recesses 20.
Patent GB-754054-A (GB)
Title: Process for eliminating the electrostatic charging of polyethylene terephthalate fibres
IPC: D06M13/127
Filed: 1954-07-29
Abstract: Polyethylene terephthalate textile materials are treated with an aqueous solution of a triethanolamine salt of benzoic or a hydroxybenzoic acid, e.g. salicylic acid, or a neutral or acid triethanolamine salt of phthalic or isophthalic acid, either alone or in conjunction with polyvinyl alcohol.  The composition, which may also include a lubricating oil, may be applied at a pH of 4.2 and at temperature of 60 DEG C. to 80 DEG C. to staple fibres or fabrics.
Patent GB-597883-A (GB)
Title: Improvements in or relating to bicycle frames
IPC: B62K19/34
Filed: 1944-11-13
Abstract: 597,883. Crank-axle brackets. HILL, W. Nov. 13, 1944, No. 22290. [Classes 136 (i) and 136 (iii)] In a cycle frame a stiffening plate 4 is brazed to the chain stays 3 adjacent the bottom bracket 2. A bridge 6 is made by rolling part of the plate 4 to form a tube. The plate 4 is brazed in transverse slots 5 in the chain stays 3. Apertures 7 are provided to draw away water and to allow the fitting of a mudguard. Alternatively the plate may be brazed to the top of the chainstays and a slot provided to give clearance for the chain sprockets. Concentric grooves in the hub caps 9 and crank 10 act as water excluders and oil retainers in the bottom bearing. According to the Provisional Specification the down tube of the bicycle frame is formed by two D-section tubes arranged with their flat faces together and secured in the head lug and bottom brackets.
Patent GB-204186-A (GB)
Title: Improvements in connection with balls used in playing games
IPC: A63B67/18
Filed: 1922-08-16
Abstract: 204,186. Tibbenham. L. J. Aug. 16, 1922. Balls for use in playing table-tennis, lawntenis, &c. have feathers or equivalent steadying means attached to them.
Patent GB-184804-A (GB)
Title: Improvements in electromagnetic devices
IPC: B61L23/12
Filed: 1922-08-16
Abstract: 184,804. Western Electric Co., Ltd., (Assignees of Elmen, G. W.). Aug. 16, 1921, [Convention date]. Addition to 188,688 Drawings to Specification. Alloys.-In electromagnetic apparatus, having open magnetic circuits, comprising two or more relatively movable parts, the cores or armatures, or both, are formed of the magnetic material described and claimed in the parent Specification, having a higher permeabilty than iron at low magnetizing forces. The alloy contains 21.5 per cent of iron and 78.5 per cent of nickel, but when a higher resistivity is required an alloy containing 55 per cent of nickel, 34 per cent of iron, and 11 per cent of chromium may be used. Specifications 189,410 and 189,832 are referred to. According to the Specification as open to inspection under Sect. 91 (3) (a), the magnetic material includes in its composition two of the following metals :-manganese, iron, nickel, cobalt, and copper. This subject-matter does not appear in the Specification as accepted.
Patent GB-474649-A (GB)
Title: Improvements in and apparatus for the degasification of alkaline liquids laden with hydrogen sulphide
IPC: B01D53/52
Filed: 1936-08-14
Abstract: In the degasefication of alkaline liquids containing hydrogen sulphide, the effluent hydrogen sulphide is burned and used to supply the heat necessary for the degasefication.  The amount of oxygen may be controlled so as to produce either sulphur dioxide or sulphur.
Patent GB-986358-A (GB)
Title: Process for the production of polyimides
IPC: C08F2/46
Filed: 1963-06-05
Abstract: A process for the production of polyimides comprises reacting one or more diamines having the formula H2N-R1-NH2, where R1 is a divalent aromatic radical, with at least one tetracarboxylic acid dianhydride of the formula <FORM:0986358/C3/1> where R is a tetravalent radical containing at least one ring of six carbon atoms characterized by benzenoid unsaturation, and wherein the four carbonyl groups of said dianhydride are attached to different carbon atoms in said R radical, in the presence of an organic solvent for at least one of the reactants, said solvent being inert to the reactants, at a temperature below 175 DEG  C. to form a polyamide-acid having an inherent viscosity of at least 0.1 measured at 35 DEG  C. at a concentration of 0.5% by weight of the polymer in a suitable solvent, and then converting the polyamide acid solution to polyimide by heating while simultaneously mixing said solution with as conversion catalyst a tertiary amine which is Lewis base having an ionization constant of at least 1 x 10-10.  Many conventional polymer-forming reactants are specified.  Specified catalysts are pyridine, 3:4-,3:5- and 2:6-butidine, 3- and 4-methyl pyridine, 4-isopropyl pyridine, N:N-dimethyl aniline, quinoline, isoquinoline, 4-benzyl pyridine, trimethylamine, triethylamine, N:N-dimethyl benzylamine, N:N-dimethyl dodecylamine, triethylene diamine, 2-ethyl pyridine, 2-methyl pyridine and 2:4:6-collidine.  Examples are given.
Patent GB-808125-A (GB)
Title: An actuating mechanism for electric circuit breakers
IPC: H01H3/26
Filed: 1955-08-04
Abstract: 808,125. Automatic circuit-breakers; actuation of switches. ELEKTRO-MECHANIKG.m.b.H. Aug. 4, 1955 [Aug. 7, 1954], No. 22448/55. Class 38 (5). A circuit-breaker power operating mechanism has an electrically-controllable clutch, preferably a magnetic power clutch 27, which is engaged to initiate the closing of the circuit-breaker 21, is maintained engaged so that worm gearing on its input side holds the circuitbreaker closed when the drive ceases, and when disengaged releases the circuitbreaker which opens. In the arrangement shown, an electric motor 30 closes the circuit-breaker 21 against the bias of an opening spring 24 through the worm gearing 29 and linkage 28, 26, 25 when the operating winding (not shown) of the clutch 27 is energized. When the closing movement is complete, the motor is de-energized and reverse rotation of the input side of the clutch is prevented by the worm gearing so that the circuitbreaker is maintained closed until the clutch is released. When the circuit-breaker is opened, the clutch winding may be re-energized shortly before the completion of the opening movement to damp the circuit-breaker movement. Contacts may be associated with the clutch to cause the immediate release of the clutch should it tend to slip and cause a slow opening of the contacts.
Patent GB-311996-A (GB)
Title: Improvements in brake clips for use in connection with perambulators and the like
IPC: B62B5/04
Filed: 1928-08-03
Abstract: 311,996. Brettell, G. P. Aug. 3. 1928. C l i ps, pivotedjaw.-A perambulator brake clip comprises handle-members 1 of stamped sheet metal pivoted by a pin 7 passing through lugs 3 and provided with extensions to which the jaws proper 2, separately formed from solid rod, are secured by rivets, welding or other suitable means. As shown, the handles 1 are of channel section and the extensions 5 are formed by lugs bent to tubular or socket form to receive the jaws 2 which are secured by rivets 6. The free ends of the jaws 2 may have a projection 9 and co-operating recess 10. The spring 8 serving to c.lose the jaws is shown of spiral form disposed round the pivot pin 7 in the usual way.
Patent GB-897220-A (GB)
Title: Improvements relating to electrical circuits
Inventor: REDDING ROBERT JAMES
IPC: G05B1/02
Filed: 1958-07-14
Abstract: 897,220. Automatic control systems. EVERSHED & VIGNOLES Ltd. July 13, 1959 [July 14, 1958], No. 22515/58. Addition to 845,291. Drawings to Specification. Class 38 (4). [Also in Groups XXXVIII and XL (c)] In a circuit as claimed in the parent Specification in which a full-wave rectifier supplies direct current which is controlled independently of the rectifier by a device responsive to a quantity to be controlled or indicated, and a voltage proportional to the direct current is developed across a resistance in the secondary circuit of a transformer whose primary is included in the input circuit of the rectifier, non- linear resistance is included in the secondary circuit to compensate for non-linearity between the direct current and the quantity to be controlled or indicated. The non-linear resistance, which may be a rectifier or variably-heated thermistor, may be combined in series and/or parallel with linear resistances to obtain the desired characteristic. One arrangement described compensates for non-linearity between the output of a thermocouple and the temperature to which it is responsive and a portion of the output voltage is fed back in series with the thermocouple to stabilize a valve amplifier.
Patent GB-894425-A (GB)
Title: Boric acid amides
IPC: C07F5/02
Filed: 1960-06-27
Abstract: Amino-boranes of the general formula H3-nB(NRR1)n where n is 1, 2 or 3, R is an aromatic, aliphatic or hydroaromatic radical and R1 is an aromatic, aliphatic or hydroaromatic radical or hydrogen or NRR1 may also be a radical formed by splitting off hydrogen attached to the nitrogen of a heterocyclic base, are made by reacting nitrogen bases of the formula HNRR1 with an alkali metal or alkaline earth metal borohydride and with a boron trihalide, boron trihalide-ether addition compound or boron trihalide-amine addition compound, the molar ratio of amine to boron-halogen compound being at least 2 : 1. Hydrocarbons or ethers may be used as solvents.  Suitable amines and boron halides are specified.  Examples describe the preparation of tris(anilino) borane, tris(4-chloroaniline) borane, tris(3,5-dichloroanilino) borane, tris(N-methylanilino) borane, bis(dibutylamino) borane and bis(dipropylamino) borane.
Patent GB-597839-A (GB)
Title: Improvements in or relating to the making of glass
IPC: C03B5/027
Filed: 1945-09-03
Abstract: 597,839. Heating glass by passage of current. SOC. ANON. DES MANUFAC. TURES DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUNY, & CIREY. Sept. 3, 1945, No. 22572. Convention date, July 1, 1943. [Class 39 (iii)] [Also in Group XXIII] An electric glassmaking furnace comprises vertical electrodes 5 entering the glass 2 in the melting zone through the bottom 6 of the furnace and spaced from the walls 1, the highdensity current passing through the molten glass horizontally between the electrodes creating a sort of column of constantly ascending high-temperature molten glass, fresh batch material M being floated on the top of this column above the electrodes. The under portion of the batch thus becomes melted and merges with the already molten glass which passes away towards the walls. Additional electrodes arranged horizontally just below the surface of the molten glass away from the melting electrodes may be provided for fining the bubbly glass as described in Specification 597,838. In the form shown, three melting electrodes which may be of graphite are arranged in a triangle and are connected to the poles of a three-phase electric supply. The electrodes pass through watercooled collars 8 and are adjustable axially according to the level of molten glass. Various alternative electrical connections between the electrodes are described.
Patent GB-1009632-A (GB)
Title: Production of cross linked polymers
IPC: C08K5/14
Filed: 1964-06-02
Abstract: A synthetic organic polymer is cross-linked by heating in the presence of an organic monoperoxy carbonate <FORM:1009632/C3/1> wherein R and R1 are organic radicals, e.g. an O,O-t-alkyl O-isopropyl monoperoxy carbonate such as O,O-t-butyl O-isopropyl monoperoxy carbonate.  The polymer may be derived from ethylene, propylene, butene, isobutylene, styrene, vinyl acetate, vinyl or vinylidene chloride, vinyl fluoride, methyl acrylate or methacrylate, butadiene, isoprene or chloroprene; or may be a silicone polymer, polyurethane or polypropylene oxide.  Optional ingredients include sulphur, thiuram sulphides, silica, carbon black, calcium carbonate, zinc oxide, antimony oxide and calcium silicate.  Applications specified are as sheet, tyre, tube, rod, heels and shoe soles.
Patent GB-942442-A (GB)
Title: Improvements in or relating to the production of styrene
IPC: C07C15/46
Filed: 1962-06-13
Abstract: In the production of styrene by the dehydrogenation of ethylbenzene followed by distillation of the product, the gaseous reactor effluent is passed in indirect heat-exchange with liquid from a distillation step to condense the effluent and vaporize the liquid.  The dehydrogenation is effected conventionally in the presence of steam and the distillation is effected in a number of stages, the reactor effluent after heating the reactor feed by indirect heat-exchange is split into the same number of streams to heat the reboilers of the distillation columns.
Patent GB-1526655-A (GB)
Title: Dc converters
IPC: H02M3/07
Filed: 1977-05-30
Abstract: 1526655 Automatic voltage control SIEMENS AG 30 May 1977 [31 May 1976] 22720/77 Heading G3R [Also in Division H2] A step-up DC-DC converter includes a series capacitor C2 which is intermittently charged by an intermediate capacitor C1. In one half-cycle of a 20KHz pulse generator T, a transistor T2 is turned on so that the capacitor C1 is charged through a further transistor T3, a resistor R1, and a diode D1. In the following half-cycle, charge is transferred from capacitor C1 to capacitor C2 by turning on transistors T1, T4, T5. The output voltage is regulated to a maximum value by comparison with a Zener voltage ZD to produce an amplified control signal which adjusts the biasing voltage of the transistor T4. A similar circuit, Fig. 2 (not shown), may be used to provide a negative output voltage smaller in amplitude than the positive input voltage.